Quadsuit

A quad suit, quadsuit or quad costume is a fursuit that utilizes the wearer's arms as forelegs which assume the position of a quadruped character's own forelegs on the same ground or surface as the character's hindlegs. Such suits, which are less common than biped fursuits, are used in order to further impress individuals with a more "animalistic" (hence, realistic) pose and manner of movement.